介绍一种中小型电动机机壳安装孔钻孔专用机具的设计和使用。

This paper introduces the design and application of the drilling machine of middle-sized and small -sized electromotor.

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介绍了目前比较成功的倒垂孔钻孔、钻孔偏斜、保护管安装、双金属标的埋设及安装等施工方法和控制措施。

This paper introduces successful construction method and control measure currently used for holedrill, borehole deviation, protection tube, and embedment and installation of bimetal mark.

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介绍岩滩水电站大坝倒垂线观测系统的倒垂线孔钻孔的孔斜控制、孔斜测量、孔斜纠偏等施工技术及廊道内遇长岩芯的处理方法。

This paper introduced construction technique of the inverted vertical line survey system, boring, hole slope measuring, slope correcting, etc. of the Yantan hydropower station.

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